
import java.util.Scanner;
public class Find1 {
public static void main(String[] args) {
int[] number={1,10,31,33,37,48,60,70,80};
int find;
int r=-1;
System.out.println("输入数字: ");
Scanner scanner=new Scanner(System.in);
find=scanner.nextInt();
for(int i=0;i<number.length;i++) {
if(find==number[i]) {
r=i;
}
}
System.out.println(r);
}
}
